Regional(International) Settings and vice versa to English

I am having a slight problem with decimal pointconverting to international (comma) value whenselecting a Regional "International" Setting andvice versa back to English(USA) to (decimal)for some cells in a spreadsheet.

The cells have a FIXED($B1+0,2) type of an equation.There are some cells with this type of an equation when I would type into it,the cell doesn't do a calculation, it simply displays the equation without anerror.I have also tried the F9 to Calculate Now, but this didn't change anything.